Re: [Xen-devel] [PATCH] xen-blkfront: export backend vdev name via sysfs

[Olaf Hering <olaf@xxxxxxxxx>]

On Thu, Jun 09, David Vrabel wrote:

> Why don't you get the udev rule to read the xenstore key directly instead?

Good point. Something like this does indeed work:

c170:~ # cd -P /sys/block/xvda/device ; d=${PWD##*/} ; xenstore-read 
`xenstore-read device/${d/-/\/}/backend`/dev
hda
c170:/sys/devices/vbd-768 # 

Olaf

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